Shipping address at checkout displaying errors

I’m currently setting up a store which has pick up in store as the only shipping option.
My problem is with the “shipping address” checkbox.
My customers would not tick it - as “Ship this order to the billing address above” is not relevant as we are only doing in-store pickup.
However, if it remains un-ticked, then it reports errors at check out as the required fields have not been completed…
Any ideas how to get around this please?

I thought I’d found the solution with this option in WSM but it does not have the desired affect